Improvement in canal-banks



w. RODNEY.

CANAL-BANKS. No. 179,861 Patented. Ju1y18.187'6.

nmzrus PHOTmLrmoemPflin. WASHINGTON. n .c.

UNITED STATES PATENT OFFICE.

WILLIAM RODNEY, OF NEW YORK, N. Y.

IMPROVEMENT IN CANAL-BANKS.

Specification forming part of Letters Patent No. 179,867, dated July 18, 1876; application filed February 8, 1876.

To all whom it may concern Be it known that 1, WILLIAM RODNEY, of the city of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Canal- Bnnks; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanyiug drawings, and to the letters of reference marked thereon which form a part of this specification.

. The object of my invention is to give the water in a canala rotary motion, thereby avoiding the excessive wash over the bank. This is effected by my invention'of a concave canal-wall. By thus decreasing the height of the following wave and protecting the bank the speed of the boat or vessel may be increased and transportation facilitated.

The degree of concavity of the canal-wall may bedetermined by the Width and depth of the canal and the speed of the boat or vessel used.

This form of wall may be applied in several ways, as shown in the transverse views of the accompanying drawings, Figure l, a a, where the entire wall is concave; Fig. 2 and Fig. 4, where the concave Wall a a is placed on an outward-sloping wall, B B; Fig. 3 and Fig. 5,

where there is a vertical wall, 0 c, with the WM. RODNEY.

Witnesses LYDIA RODNEY, LAVINIA V. RODNEY. 

